package com.example.java_gobang.api;

import com.example.java_gobang.model.User;
import com.example.java_gobang.model.UserMapper;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

/**
 * @author krystal
 * @date 2023/3/11 21:14
 */
@RestController
public class UserAPI {

    @Resource
    private UserMapper userMapper;

    @PostMapping("/login")
    @ResponseBody
    public Object login(String username, String password, HttpServletRequest req){
        //根据username在数据库中进行查询
        //如果找到匹配的用户，并且密码也一致，就认为登录成功
        User user= userMapper.selectByName(username);
        System.out.println("[login] username="+username);
        if (user==null || !user.getPassword().equals(password)){
            System.out.println("登录失败！");
            return new User();
        }
        HttpSession httpsession=req.getSession(true);
        httpsession.setAttribute("user",user);
        return user;
    }

    @PostMapping("/register")
    @ResponseBody
    public Object register(String username,String password){
        try {
            User user=new User();
            user.setUsername(username);
            user.setPassword(password);
            userMapper.insert(user);
            return user;
        }catch (org.springframework.dao.DuplicateKeyException e){
            User user=new User();
            return user;
        }
    }

    @GetMapping("/userInfo")
    @ResponseBody
    public Object getUserInfo(HttpServletRequest req){
            try {
                HttpSession httpSession=req.getSession(false);
                User user=(User) httpSession.getAttribute("user");
                //拿着这个user对象，去数据库中找，找到最新的数据
                User newUser=userMapper.selectByName(user.getUsername());
                return newUser;
            }catch (NullPointerException e){
                return new User();
            }
    }
}

